Holley - 122-42
Carburetor Jet; Standard Main Jet; 1/4-32 UNF Thread; Hole Size 0.042 in.; Pair;
These metering orifices control fuel flow into the metering system. They are rated in flow capacity "cubic centimeters per minute" and are changeable for tuning purposes. The shape of the entry, exit, and size determines flow. All Holley Main jets are flow tested and then stamped with the correct number. Click on Catalog Product Page for complete listing of jets and sizes.
- 1/4-32 Thread
- .042" Jet size
- Jet Hole sizes provided for reference only . All Holley jets are sized by actual flow and may vary from sizes above.
- Standard Main Jet
- Fits All Holley Model 2010, 2300, 4010, 4011, 4150, 4160 & 4500
- Sizes from 40-110
Brand: Holley
Clearance Category: Carburetors and Components
Discount Percentage: 26-50%
Emission Code: 5
Jet Number: 42
Jet Size: 0.042 inch
Product Type: Standard Main Jet
Sale Category: Carburetors and Components
Warning: California Proposition 65
Warranty: Limited 90 Day
